Cream or milk aerator.



PATENTED JULY 26, 1904.

G. W. KENNEDY.

CREAM OR MILK AERATOR.

APPLIGATON FILED JULY 1, 1903.

NO MODEL.

UNTTED STATES Patented July 26, 1904.

GEORGE WV. KENNEDY, OF THORNTON, IOWA.

CREAM OR lVllLK AEFRATOR.

SPECIFICATION forming part of Letters Patent No. 765,'7'8, dated July 26, 1904.

Application filed July l, 1903. Serial No. 163,904. (No model,\.

To @ZZ whom, t may concern.'

Be it known that I, GEORGE AW. KENNEDY, a citizen of the United States, residing at Thornton, in the county of Cerro Gordo and State of Iowa, have invented certain new and useful Improvements in Milk and Cream Aerators and Coolers, of which the following is a full, clear, and eXact description.

This invention relates to milk and cream aerators and coolers.

The object of the invention is to produce a milk and cream aerator wherein the contents being aerated will be constantly under the influence of a surrounding wall of cool water, and, further, to produce a dasher and milk or cream containing' can so correlated in shape as to produce a highly-efficient aeration of the contents.

A further object of the invention is to produce an aerator of the character noted which will prove satisfactory in use, simple in construction, and comparatively inexpensive to manufacture.

lVith the above and other objects in view the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing' the invention in detail reference will be had to the accompanying drawing, formingpart of this speciiication, and wherein like characters denote corresponding parts, in which the figure is a vertical section of my invention.

In the drawing, D is an outer or large can adapted to contain water for cooling the contents being aerated in the small can B. The can D is provided with three or more vertical inwardly-extending ribs or guides E, the limiting' vertical edges of which serve to guide the can B and preventlateral movement thereof. The bottom of the can D is formed with the inwardly-projecting frustum H, which is adapted to enter a similarly-formed bottom E of the can B. The canB is of such length as will permit a slight reciprocation thereof, and when buoyed by the water in the can D a space J will be left between the bottoms E and H and the water will be free to circulate therein. The upward movement of the can B is limited by the thumb-nuts I, secured to the ribs E.

The aeration is produced by reciprocating the cone-shaped dasher A, having its top constructed so that its interior conforms to the shape of the bottom F of the can B and when depressed tits snugly around said bottom. The dasher is provided with a stem K and a handle L for operating purposes.

The operation of the device is substantially as follows: The can B is placed inside the large can D and after being' lowered to the bottom is held in place laterally by the vertical guides E and is prevented from rising beyond the top of the can D by turning' the thumb-nuts I, secured to the top of the guides E. The space between the two cans B and D is filled with cold water, and the milk or cream is put into the inner can B. By means of the handle L the dasher A is forced down to the bottom of the can B. When the dasher A begins to pass down over the bottom F, the air contained in the former will escape around the outer circumference of the dasher A and passing upward through the milk or cream will aerate and cool the same. When the dasher A has reached the bottom of the can B, a further pressure on the handle L will force the entire can B to the bottom of the can D and the water contained in the space J between the bottoms F and H will be forced out, passing out around the outer circumference lof the bottom of the can B. By a quick withdrawal of the dasher A the consequent suction and vacuum will raise the can B as far as permitted by the thumb-nuts I, the cold water returning and filling' the space J between the bottoms E and H. In withdrawing the dasher A the vacuum in same will absorb the particles of impure air in the milk or cream and discharge them when the dasher is raised out of theV milk or cream.

I claim- 1. A cream or milk aerator comprisinga cooling-receptacle having' the central portion of its bottom extending inwardly, a creamcontaining can within said cooling-receptacle having' its bottom corresponding in shape to that of the cooling-receptacle, means for retaining' thecream-containin'g can against latlOO can against lateral movement, thumb-nuts secured to the top of said guides to limit the reoiproeation of the cream-containing can and a reciprocating dasher for agitating the oontents of the cream-containing can.

ln testimony Whereo` I have signed my name to this speciieation in presence of two Witnesses.

GEORGE WV. KENNEDY. Vtnesses:

CHAs. B. HOPLEY, S. DOWNING. 

